http-sec-audit

スター12

フォーク5

更新日2026年6月7日 11:03

Audit a website's HTTP security headers and cookie flags — CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP/COEP, version-leaking banners, and Secure/HttpOnly/SameSite cookies. Use when the user asks to "check my site's security headers", "audit HTTP headers", "is my CSP/HSTS configured right", or "scan a URL for header misconfigs".

インストール

Codex または Claude でインストールこの Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。

ソース

NovaCode37

NovaCode37/claude-security-skills

GitHub リポジトリを開く Creator のリポジトリを見る

ダウンロード

HTTP Security Header Audit

Checks a site's response headers against modern web-security best practices and returns prioritized findings with concrete fixes. The analysis core is pure and offline-testable; live scanning uses only Python's stdlib urllib.

When to use this skill

"Audit the security headers on https://example.com."
"Is my CSP / HSTS / cookie config correct?"
"Why is this site flagged for missing headers?"

What it checks

Content-Security-Policy — presence, unsafe-inline, wildcards.
Strict-Transport-Security — presence and max-age length.
X-Content-Type-Options: nosniff, X-Frame-Options / frame-ancestors.
Referrer-Policy, Permissions-Policy.
Information disclosure — Server / X-Powered-By version banners.
Cookies — Secure, HttpOnly, SameSite (incl. SameSite=None without Secure).

How to run it

# Live scan
python skills/http-sec-audit/audit.py https://example.com

# JSON output
python skills/http-sec-audit/audit.py https://example.com --json

# Offline: audit a saved raw header block (no network)
python skills/http-sec-audit/audit.py --headers-file response_headers.txt

Exit codes: 0 no high issues · 1 findings present · 2 fetch/usage error.

Recommended workflow for Claude

Run the audit (live, or offline against captured headers).
Group findings by severity and present each with its one-line fix.
Offer ready-to-paste header snippets for the user's stack (nginx, Apache, Express, etc.) for the missing headers.
Only scan sites the user owns or is authorized to test.

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name	http-sec-audit
description	Audit a website's HTTP security headers and cookie flags — CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP/COEP, version-leaking banners, and Secure/HttpOnly/SameSite cookies. Use when the user asks to "check my site's security headers", "audit HTTP headers", "is my CSP/HSTS configured right", or "scan a URL for header misconfigs".
license	MIT

name	http-sec-audit
description	Audit a website's HTTP security headers and cookie flags — CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, COOP/COEP, version-leaking banners, and Secure/HttpOnly/SameSite cookies. Use when the user asks to "check my site's security headers", "audit HTTP headers", "is my CSP/HSTS configured right", or "scan a URL for header misconfigs".
license	MIT